The technology opportunity analysis of patent based on neural network——taking biological nanomedicine as an example
1Institute of Medical Information, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing 100020, China
2National Science Library, Chinese Academy of Sciences, Beijing 100190, China
3Department of Information Resources Management, School of Economics and Management, University of Chinese Academy of Sciences, Beijing 100190, China
4Agricultural Information Institution, Chinese Academy of Agriculture Sciences, Beijing 100081, China
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